Polarity indexes of solvents which are commonly used for SEC analysis is shown below.
Scroll
| Solvents | Chemical formula | δ | P' |
|---|---|---|---|
| Cyclohexane | C6H12 | 8.2 | -0.2 |
| n-Hexane | CH3(CH)3 | 7.3 | 0.1 |
| Carbon tetrachloride | CCl4 | 8.6 | 1.6 |
| Isopropyl ether | (CH3)2CHOCH(CH3)2 | 7.0 | 2.4 |
| Toluene | C6H5CH3 | 8.9 | 2.4 |
| Dichloromethane | CH2Cl2 | 9.6 | 3.1 |
| Dichloroethane | CH2ClCH2Cl | 9.7 | 3.5 |
| Isopropyl alcohol | CH3CH(OH)CH3 | 10.2 | 3.9 |
| THF | C4H8O | 9.1 | 4.0 |
| n-Propanol | CH3CH2CH2OH | - | 4.0 |
| Chloroform | CHCl3 | 9.3 | 4.1 |
| Ethanol | C2H5OH | 11.2 | 4.3 |
| Ethyl acetate | CH3COOC2H5 | 8.6 | 4.4 |
| Methyl ethyl ketone | CH3COC2H5 | - | 4.7 |
| Dioxane | C4H8O2 | 9.8 | 4.8 |
| Acetone | CH3COCH3 | 9.4 | 5.1 |
| Methanol | CH3OH | 12.9 | 5.1 |
| Acetonitrile | CH3CN | 11.8 | 5.8 |
| Acetic acid | CH3COOH | 12.4 | 6.0 |
| Dimethylformamide | (CH3)2NOCH | 11.5 | 6.4 |
| Ethylene glycol | HOCH2CH2OH | 14.7 | 6.9 |
| Dimethylsulfoxide | (CH3)2SO | 12.8 | 7.2 |
| Water | H2O | 21.0 | 10.2 |
- δ
- ：Solubility parameter
- P'
- ：Rohrschneider's polarity parameter
Applications
- Hydrophobic Polymers: THF Eluent
- Hydrophobic Polymers: Chloroform Eluent
- Hydrophobic Polymers: DMF Eluent
- Hydrophobic Polymers: HFIP Eluent
- Hydrophobic Polymers: Other Eluents
- Additives in Hydrophobic Polymers
- Hydrophobic Oligomers
- Hydrophilic Polymers
- Cationic Polymers
- Solvent-peak Separation Columns
Applications (Related Information)
- To Realize Pure SEC Mode
- Guidelines for Shodex Column Selection
- Sample Concentration for SEC Analysis
- Effects of Sample Load (Pullulan)
- Selection of Calibration Curves
- Selection of Calibration Standards
- Connection of Different Pore-size Columns
- Comparison of Calibration Curves: Linear Type and Conventional Type
- Comparison of Separation: Linear Type and Conventional Type (1)
- Comparison of Separation: Linear Type and Conventional Type (2)
- Solubility of Solvents
- Physical Chemistry Properties of Solvents